I have had success blasting a 220gr plated projectile over 1200fps(1260 avg)but it was scary as poop though, and the cases were not reusable(excessive case expanding). Sucks I didn't record my load data

Lately me and a buddy started to go to the range at least once or twice a week for about a month now and I always shoot my g20 (about 50rds each time).  My questions is: Is it safe to shoot full power ammo all the time?  I have shot at least 200-300 rnds so far.  My g20 (gen3) has an aftermarket barrel, ss guide rod, 22lb recoil spring. 

Ammo I'm using:
Reloads
-200gn bullet
-9.6 gn blue dot
-starline case
-winchester wlp primers

Thanks

I wish.  Just got word that sierra bullet prices will increase 4% January 2014.

Yondering this is the best I can do(using iPhone)

Quote from: The_Shadow on January 16 2013 09:43:25 PM MST
With that short freebore taper you will be using a COAL of 1.2450", so trying 1.2500" may prove to be tight!

As you look inside you can see that the lands are still present at the end of the chamber cut, these should be absent and tapered lands to for the truing cone section. 

The barrels of the Bren Ten pistol's freebore doesn't have any rifiling for 3/4th of an inch...

1.245 still does not clear, but @ 1.240 its all good.  Looking at the rifling, it does not go to the end of the chamber, lands also look tapered.

Is this good enough?  And yes it was very tricky to get this shot LoL.  I did not get a chance to try factory loaded ammo yet.  But it would suck if I couldn't use reloads, because that was my soul purpose for the barrel...

Quote from: Yondering on January 15 2013 05:32:50 PM MST
I wish the aftermarket barrel makers would quit trying to pawn off this idea on us of overly tight chamber and throat dimensions making their product a "match grade" barrel. It's like they ignore the barrel/slide fit, so they can sell a "drop in" barrel, and think a tight chamber makes up for the loose exterior fit. It sucks, and it's wrong.

ii open, I'd be thinking about sending that barrel back, except that with SL's lead time, you might be out of a barrel for a while. It sucks to have to fix a brand new barrel like that, but that's probably what I'd do.

I've read about this happening enough with Storm Lake barrels that I certainly won't be buying one.

Yeah tell me about it, I waited almost a month for this barrel, and now I gotta return it....

Quote from: sqlbullet on January 15 2013 04:13:07 PM MST
Is the barrel only short chambered?  What do factory round do if you drop them in?

Has the barrel been cleaned since you bought it?

Believe it or not, I can't find any 10mm ammo except for DT and I ain't spending $48 for a box.  Short chambered?  And yes, I cleaned the barrel.

I reloaded some 10mm rounds(dummy) using new starline bass and 155gr xtp bullets.  Dropped them into my new SL barrel and they don't go all the way down(almost)  So I tapped the cartridge til it bottomed, and then extracted the round. 

This is what I found


Looks like the bullet is touching the step?(I don't know what that part is called) where the case headspaces.  Btw, the bullet is seated @ 1.250.

Your thoughts?   

Quote from: Steve4102 on December 20 2012 04:25:29 PM MST
What ammo?

Its actually reloads from a shop down the road from me.  It was cheap, so I figured I buy a box and dissect them.

Thanks for replying guys, I appreciate it.  Also I'm a bit concerned about crimping.  I pulled one of the bullets, and damn, I smacked the hell outta my puller.  I damned near lost my breath trying to pull the bullet out.  When it finally came out, I thought it was glued in or something but maybe it was just crimped a little too much???

My hornady reloading manual (7th ed.) says: min and max is 1.260 (180gr bullet)?  Bought some ammo yesterday and measured them and the col is at 1.277?

I'm gonna start to reload 10mm soon, and was wondering why the min col is the same as the max?

Thanks